An Iranian couple walks past a banner after a demonstration in support of the people of Bahrain, outside the University of Tehran in Iran on Sept. 9. Morteza Nikoubazl/Reuters/File

A woman walks past an image of students climbing the gates of the US embassy in Tehran in 1979 during a ceremony to mark the anniversary of the seizure of the US embassy in Tehran, Iran, on Nov. 3, 2008. Caren Firouz/Reuters/File

A schoolboy poses for a photograph in front of an anti-US mural as he holds pictures of Iran's Late Leader Ayatollah Ruhollah Khomeini (l.) and Supreme Leader Ayatollah Ali Khamenei after a gathering to mark the anniversary of the seizure of the US embassy in Tehran, Iran, on Nov. 4, 2007. Morteza Nikoubazl/Reuters/File

A schoolboy gestures as he holds a placard while attending a ceremony to mark the anniversary of the Islamic Revolution at the Behesht-e Zahra (Zahra's paradise) cemetery in southern Tehran, Iran, on Feb. 1, 2010. Morteza Nikoubazl/Reuters/File

Shoes are suspended in front of a US flag during a protest in support of the Iraqi TV journalist Muntazer al-Zaidi, in front of the former US embassy in Tehran, Iran, on Dec. 24, 2008. Morteza Nikoubazl/Reuters/File

A woman walks past an anti-US mural on a wall of the former US embassy during a protest, in support of the Iraqi TV journalist Muntazer al-Zaidi, in Tehran, Iran, on Dec. 24, 2008. Morteza Nikoubazl/Reuters/File